diff --git a/Cargo.toml b/Cargo.toml
index b6b6511..020df72 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,5 +29,5 @@ structopt = "0.2.13"
 itertools = "0.8.0"
 net2 = "0.2.33"
 clone_all = "0.1.1"
-derive_more = "0.15.0"
+derive_more = "0.99.8"
 ref_thread_local = "0.0"
\ No newline at end of file